<!DOCTYPE html>
<style>
table {
    border-collapse: collapse;
    border-spacing: 0px;
}
td, th {
  padding: 0px;
}
tr {
    break-inside: avoid;
}
.header {
    font-weight: bold;
    text-align: center
}
</style>
<p>crbug.com/656232: A nested table header group repeats on each page.</p>
<div style="-webkit-columns:3; line-height: 20px; column-fill: auto; height:190px;">
    <table>
        <tr><td class="header" colspan=2>Col 1</td></tr>
        <tr><td>
                <table>
                    <tr><td class="header">Col 1</td><td class="header">Col 2</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td style="height: 10px;"></td><td style="height: 1px;"></td></tr>
                    <tr><td class="header">Ft 1</td><td class="header">Ft 2</td></tr>
                </table>
        </tr></td>
        <tr><td class="header" colspan=2>Col 1</td></tr>
        <tr><td style="padding-top: 0px;">
                <table>
                    <tr><td class="header">Col 1</td><td class="header">Col 2</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td style="height: 10px;"></td><td style="height: 1px;"></td></tr>
                    <tr><td class="header">Ft 1</td><td class="header">Ft 2</td></tr>
                </table>
        </tr></td>
        <tr><td class="header" colspan=2>Col 1</td></tr>
        <tr><td style="padding-top: 0px;">
                <table>
                    <tr><td class="header">Col 1</td><td class="header">Col 2</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td>Te</td><td>xt</td></tr>
                    <tr><td class="header">Ft 1</td><td class="header">Ft 2</td></tr>
                </table>
        </tr></td>
    </table>
</div>

